Assessment and screening
Clinical interviews and questionnaires organise evidence. They do not replace a qualified diagnosis.
UK CLINICAL NAVIGATION
Mental-Health Tests and Investigations Available in the UK
A structured directory of clinical assessments, questionnaires, physical checks, blood tests, cognitive and neurological investigations, sleep studies and medicine monitoring relevant to mental-health symptoms and wellbeing support.
Reviewed 24 August 2026
Direct answer
There is no universal “mental-health blood panel” and most mental disorders are not confirmed by a scan or laboratory result. In UK practice, a professional starts with history, symptoms, functioning, risk, physical health, medicines and context, then selects only investigations that can answer a defined question or improve treatment safety.
Six investigation pathways
Clinical Mental-Health Assessment and Screening in the UKClinical conversations and validated questionnaires can organise symptoms, impact, risk and change over time, but a score is not a diagnosis.Blood Tests and Physical-Health Checks Relevant to Mental HealthPhysical conditions, nutrition, medicines and substance use can contribute to symptoms. Tests are selected from history and examination rather than ordered as a universal panel.Cognitive, Neurological and Brain Investigations in the UKCognitive tests, imaging and neurophysiology can clarify selected presentations, particularly new cognitive change, seizures or neurological signs; they are not routine proof of a psychiatric diagnosis.Sleep and Physiological Investigations Relevant to WellbeingSleep disorders can affect mood, attention, memory and resilience. UK pathways range from history and diaries to home studies and specialist polysomnography.Monitoring Tests for Mental-Health Medicines in the UKSome medicines require baseline or continuing checks of blood count, kidney, liver, thyroid, metabolic or cardiac measures. The prescriber defines the schedule.Choosing a Mental-Health Test: Start With the QuestionA test is useful only when it answers a defined clinical question and there is a qualified plan for interpreting and acting on the result.
How the directory is organised
Physical and laboratory tests
These investigate selected physical contributors or monitor safety. They are driven by history and examination.
Specialist investigations
Imaging, EEG, sleep studies, biomarkers and neuropsychology are used when a defined specialist question justifies them.
Before paying privately
- Confirm that the test is analytically valid and clinically useful for the stated purpose.
- Ask who will interpret it and whether the result is accepted in the NHS pathway.
- Avoid panels that claim to diagnose anxiety, depression, trauma, autism or another disorder from one biological sample.
- Do not change prescribed medicines or delay urgent care while waiting for a private result.
Official sources
Scope, safety and urgent help
iMetaWellness provides complementary wellbeing information and reflective support. It does not diagnose a mental disorder, select investigations, interpret results as a medical opinion, prescribe treatment or replace a GP, psychiatrist, psychologist, pharmacist or NHS service. A test is useful only when a qualified professional has a clear question and a plan for acting on the result.
If someone may act on suicidal thoughts, cannot remain safe, has severe confusion, new psychosis, collapse, seizure, chest pain or another immediate danger, call 999 or attend A&E. For urgent concerns that are not immediately life-threatening, contact NHS 111, the person’s GP, mental-health team or local crisis service.
Use this information in a responsible next step
We can help you organise observations, questions, routines and a concise summary for an appropriate professional. We do not order tests or confirm diagnoses.